netdev - Re: [PATCH v2 2/2] selftests/net: fix opening object file failed

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Message-ID: <Y3VfeXK092oeV+yh@x130.lan>
Date:   Wed, 16 Nov 2022 14:08:57 -0800
From:   Saeed Mahameed <saeed@...nel.org>
To:     Wang Yufen <wangyufen@...wei.com>
Cc:     netdev@...r.kernel.org, bpf@...r.kernel.org, davem@...emloft.net,
        edumazet@...gle.com, kuba@...nel.org, pabeni@...hat.com,
        shuah@...nel.org, andrii@...nel.org, mykolal@...com,
        ast@...nel.org, daniel@...earbox.net, martin.lau@...ux.dev
Subject: Re: [PATCH v2 2/2] selftests/net: fix opening object file failed

On 15 Nov 18:23, Wang Yufen wrote:
>The program file used in the udpgro_frglist testcase is "../bpf/nat6to4.o",
>but the actual nat6to4.o file is in "bpf/" not "../bpf".
>The following error occurs:
>  Error opening object ../bpf/nat6to4.o: No such file or directory
>  Cannot initialize ELF context!
>  Unable to load program
>
>In addition, all the kernel bpf source files are centred under the
>subdir "progs" after commit bd4aed0ee73c ("selftests: bpf: centre
>kernel bpf objects under new subdir "progs""). So mv nat6to4.c to
                                                   ^^ move :) 
>"../bpf/progs" and use "../bpf/nat6to4.bpf.o". And also move the
>test program to selftests/bpf.
>

Can you separate the fix from the mv ?

>Fixes: edae34a3ed92 ("selftests net: add UDP GRO fraglist + bpf self-tests")
>Signed-off-by: Wang Yufen <wangyufen@...wei.com>
>---
> tools/testing/selftests/bpf/Makefile               |   7 +-
> tools/testing/selftests/bpf/in_netns.sh            |  23 +
> .../testing/selftests/bpf/progs/nat6to4_egress4.c  | 184 ++++++
> .../testing/selftests/bpf/progs/nat6to4_ingress6.c | 149 +++++
> tools/testing/selftests/bpf/test_udpgro_frglist.sh | 110 ++++
> tools/testing/selftests/bpf/udpgso_bench_rx.c      | 409 ++++++++++++
> tools/testing/selftests/bpf/udpgso_bench_tx.c      | 712 +++++++++++++++++++++
> tools/testing/selftests/net/Makefile               |   2 -
> tools/testing/selftests/net/bpf/Makefile           |  14 -
> tools/testing/selftests/net/bpf/nat6to4.c          | 285 ---------
> tools/testing/selftests/net/udpgro_frglist.sh      | 103 ---
> 11 files changed, 1592 insertions(+), 406 deletions(-)
> create mode 100755 tools/testing/selftests/bpf/in_netns.sh
> create mode 100644 tools/testing/selftests/bpf/progs/nat6to4_egress4.c
> create mode 100644 tools/testing/selftests/bpf/progs/nat6to4_ingress6.c
> create mode 100755 tools/testing/selftests/bpf/test_udpgro_frglist.sh
> create mode 100644 tools/testing/selftests/bpf/udpgso_bench_rx.c
> create mode 100644 tools/testing/selftests/bpf/udpgso_bench_tx.c
> delete mode 100644 tools/testing/selftests/net/bpf/Makefile
> delete mode 100644 tools/testing/selftests/net/bpf/nat6to4.c
> delete mode 100755 tools/testing/selftests/net/udpgro_frglist.sh
>

created more files than deleted? also moving files should appear as
rename. Did you do the mv with git mv ? I am surprised how git didn't pick this up
as "rename".

For next version please use tag [PATCH bpf-next]